Abstract.
In this paper, the clay aggregate volume and inter-aggregate volume in compacted clayey soils are quantified, on the basis of simple hypothesis, using only their water content and dry density. Swelling tests on a highly plastic clay are then interpreted by describing the influence of the inter-aggregate volume before swelling on the total volume of samples after swelling. This approach leads to a linear relation between these latter parameters. Based on these results, a description of the evolution of the microstructure due to imbibition can be proposed. Moreover, this approach enables a general quantification of the influence of initial water content and dry density on the swelling behaviour of compacted clayey soils.
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Ferber, V., Auriol, JC., David, JP. Micro-structure and Swelling Behaviour of Compacted Clayey Soils: A Quantitative Approach. In: Hack, R., Azzam, R., Charlier, R. (eds) Engineering Geology for Infrastructure Planning in Europe. Lecture Notes in Earth Sciences, vol 104. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-39918-6_32
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DOI: https://doi.org/10.1007/978-3-540-39918-6_32
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